Enamel lined beer barrel



Noma, 1942.v

E. G. NYBRG ENAMEL LINED BEER BARREL 7 4 2 mf 7 v l x] fl n ,.,\,n1 A@ r ATTORNEY.

Nov. 3, 1942. E. G. NYBERG ENAMEL LINED BEER BARREL Original Filed May 1'7, 1937 5 Sheets-Sheet .2

Ill! .IIIIII FIG. 4.

Erik @Ng/berg INVENTOR.

BY y ATTORNEY.

Nov. 3, 1942. G (NYBERG ENAMEL LINED BEER BARREL s sheets-shea 5 OrginlFilved May 17, 1937 FIG. 6.

Erik G.Nyberg I. INVENTOR. MQW XMK ATTORNEY.

Patented Nov. 3, 1942 ENAMEL LINED BEER BARREL Erik G.Nyberg, Milwaukee, Wis., assigner to A. 0.

Smith Corporation, Milwaukee, Wis., a corporation oi' New York Original application May 17, 1937, Serial No.

Divided and this application March s, 1940, serial No. 322,861;

s claims. (o1 22o- 14) 'Ihis invention relates in general to a double walled metal barrel comprising an outer protective wall and an inner container spaced therefrom and lined with vitreous enamel or similar material.

The principal object oi the invention is to provide a support for the bung fitting of the barrel which will distribute the forces imposed when This application'is a divislonvof my co-pending application, semi No. 143,021, filed May 17, 1937,

now matured into Patent/No. 2,198,315.

Inv the accompanying drawings which illustrate a preferred embodiment of the invention,

Figure 1 is a longitudinal central section of the barrel on a plane through the bung and tap Openings; Y

Fig. 2'is a view of the mid-portion of the barrel, the outer wall being shown in section and stantially cylindrical side wall 4 and curved head 5. The rim of the head 5 is curved on a smaller radius where it merges with the wall 4 to add stillness to the rim.

The end sections 2 and l are preferably joined to the portion I by arc welds 6 and 1 respectively.

The portion i -has a bung opening 8 provided with a tubular bung fitting 9 and, to prevent any localized stresses to the inner container from shocks to the bung fitting, such as driving of a bung, the portion I adjacent to the bung opening is reenforced by a saddle I0 which straddles the opening and extends circumferentially a' short distance each side thereof and' is preferably stitch Welded to the container along the marginal portions of the saddle as at Il. As shown in the drawings the 'container and the saddle, at the opening 8, are flared outwardly to form lips I2 and I3 respectively to which the rbung iitting 9 is. attached by the arc weld I4. I'he rounding are of lip I2 permits it to be eiiiciently f enameled. The inner diameter of the enameled lip is made slightly greater than that of the the inner container being shown in elevationA and Fig. 5 is a fragmentary view of the barrel showing a modified form of container support;

Fig. 6 is a view of the mid-portion of the barrel showing a modified method of reenforcing the inner container; and

Fig. 7 is a view similar to Fig. 4 showing a modified form of' head construction adjacent the tap iittings.`

The barrel comprises, in general, anV inner vitreous enamel lined container, an outer protective shell -or casing, spaced therefrom, suitable means for resiliently supporting the container from the shell for limited relative movement, and suitable iittings. After complete fabrication of the barrel the protective casing is preferably galvanized to prevent corrosion and the barrel asV constructed readily adapts itself to. this treatment.

The inner containerwhich is slightly bilged is fabricated from sheet metal and comprises a cylindrical portion I at the bilge andA two deeply dished end sections 2 and 3 each having a subopening in bung fitting 9 so that as the bung is driveninto place it moves over the enamel without injuring it but after the bung becomes wet from the liquid contents of the barrel the bung swells and tightly engages the enameled lip and thus prevents the Vliquid from contacting any metal part of the bung fitting. See Fig. 6.

Marginal flanges I5 formed on the saddle and radiating iins I6, welded to theV bung iitting' and Y at their outer ends bearingon and welded to the saddle, stiiien the saddle and tend to distribute any shocks to the bung fitting over a large area of the container thus minimizing any chance of injury to its lining. 'I 'o more widely distribute any shocks to the bung fittings and to reenforce the mid-portion of the container. especially in large barrels, angleiron rings I5', positioned at the marginal flanges of the saddle I0', are Welded to the container, as shown in Fig. 6.

As is customary in beerbarrels the top head 5 has a tap fitting IT surroundedl by a tap cup I8. The head has an opening I9 for'receiving said cup and is provided on its inner side with a-dished circular metallic sheet 20 secured at its perifery to the head by the weld 2| which surrounds the opening I9 and is spaced therefrom. The dished member 2li has an opening` concentric with opening I9, for receiving the end of tap fitting I1 which with the cup I8 is welded to said dished member by weld 22.

lFor resilenty supporting the container within All of the above named fittings are preferably' welded to their respective section of the container before said sections are assembled and joined by arc welds 6 and 1.

After the inner container has been completely welded it is coated on the inside with vitreous enameling material and the coating dried. The

container is then heated in a furnace in any suitable manner to fuse the enamel and provide the glass lining 26 for the container.

In the manufacture of the barrel the enamel lined container with its fittings attached is completed as a unit and then mounted in the outerprotective shell. For this purpose the outer shell is fabricated in halves each to be slipped over opposite ends of the container and joined at their circumferential meeting edges by welding. I

The side wall 21 of each half is .preferably formed from a at sheet of fairly high carbon steel rolled into frustrum conical shape and having its longitudinal meeting edges electrically flash welded. The wall is then slightly bilged and provided with circumferential corrugations or steps 28 to strengthen it.

To further strengthen the wall a sheet metal Z bar ring 29 is stitch welded to the inner side of each half adjacent its larger end. The rings 29 are preferably heat treated to increase their elastic limit and therefore afford greater resistance to deformation of the Wall.

To facilitate assembling of the halves the lower section has a stabbing ring 3U spotwelded to its upper` edge. This ring also 'acts to stiffer; the mid-portion of the outer shell and serves as the base of a welding groove when the halves are assembled for welding.

The lower and upper'halves are provided with heads 3l and 32 respectively. Each head is dished outwardly to provide suitable space between it and its respective inner container head and has a marginal outwardly extending cylindrical flange 33 adapted tofit snugly in the small end portion of its respective sidewall to which it is stitch welded as at 34.

After the heads 3| and 32 have been assembled, a chime 35 is slipped over the end of each section and 'secured thereto by key welds 3S,

about eight key welds for each chime being sufficient.

The upper head is dished at 31 to engage the upper head 5 of the container'when assembled. The dished portion 31 is provided with an opening 38 for receiving the tap cup I8 which extends into the dished portion. The exposed posiand tap fittings of the container. The shell is arc Welded along its circumferential seam 40. Each conical band 23 whose free edge 4I tapers to conform with the taper of the outer Wall 21 nests into said wall and is key welded thereto as at 42, about eleven such welds to each band having been found sufiicient for a half gallon barrel.

Mounting the container within the shell by these angularly disposed resilient supports permits limited lateral and transverse relative movement andl thereby protects the container from any shock the shell may receive.

To permit this relative movement and to relieve the bung fitting 9 from undue strains it is provided with a flange 43 of reduced section to make it more flexible. The flange is provided with a circumferential lip 44 which engages the side 0f opening 39 in the shell and recessed portions'of the adjacent flanges of rings 29. The casing,

` rings 29 and flange 44 of fitting 9 are joined by weld 45.

At the tap fitting the tap cup I8, head 2 at the opening 19, and head 32 at the opening 38 are all secured together by arc weld 46. The portion 41 of the top head 5 defined by the weld 2l and the cup I8 has a series of perforations 48 and cooperates with the dished portion 31 of head 32 to provide flexibility for relieving the tap fitting from any strains due to the relative movement of the container and shell.

As shown in Fig. 7, instead of employing the dished member 20 at the tap opening, the uppery head 5 of the container may be dished as at 2U' and reenforced over said dished portion by a plate 41 which surrounds the tap cup I8 and is secured to the head by the weld 2l. The tap fitting Il and cup I8 are secured to head 5 by weld 22 which in this alternative construction is the only weld adjacent the tap opening which is exposed to the enamel lining. The cup I8, dished portion 31 of head 32 and` plate 41' are secured together by weld 46.

A barrel thus constructed provides a container having avitreous enamel lining which is readily cleaned and sterilized. It protects the container from shock and deformation by resiliently mounting it in a protective shell. It provides heat insulation by providing an air space between the container and outer shell. This space may contain additional heat insulating material.

Various embodiments of the invention rmay be made without departing from the spirit and scope of the invention as defined in the accompanying claims.

I claim:

1. In a double wall barrel having an outer protective shell and an inner fluid container, a bung fitting interposed between the shell and the inner container and'connectd to each, a saddle encircling the bung fitting and extending longitudinally and circumferentially therefrom in contact with said inner container, said saddle being secured to both the bung fitting and the inner container, and stillening ns extending from the bung fitting and secured to it and to the saddle.

2. In a. double wall barrel having an outer pro- 1 tective shell and an inner fluid container, a bung fitting interposed between the shell and container and connected to each'and a hanged saddle encircling the bung fitting and extending longitudinally and circumferentially therefrom in close contact with the inner container and secured to fifteen and onethe inner container and to the bung fitting, said saddle having circumferentially extending flanges at its opposite sides and having strengthening ribs extending diagonally from said bung fitting and secured integrally thereto.

3. In a double wall barrel having an outer protective shell and an inner fluid container with a vitreous enamel lining, a bung fitting interposed between the shell and container and connected to the container, and a saddle disposed around said bung fitting and encircling the wall of the container, said saddle being secured to the bung fitting and container and engaging the wall of the container over a substantial area to spread Y shocks transmitted by the bung fitting from the outer shell, the saddle being free from contact with the outer shell and having upstanding circumferentially extending members for stifiening the same.

4. In a double wall barrel having an outer protectlve shell and an inner fluid container with a vitreous enamel lining, a bung fitting interposed between the shell and container and connected to both, a reinforcing ring extending circumferentially completely around the inner container in engagement therewithand out of contact with the shell substantially throughout the circumference of the barrel, and means connecting said ERIK G. NYBERG. 

